//
//  ClassB.h
//  MultipleInheritanceDemo
//
//  Created by apple on 2018/1/3.
//  Copyright © 2018年 WJ. All rights reserved.
//

#import <Foundation/Foundation.h>

@protocol ClassBDelegate
- (void)walk;
@property (nonatomic,copy) NSString *walkDistance;
@end

@interface ClassB : NSObject
- (void)walk;
@end
